Bathroom Door Measurements: A Quick Guide 🚪

When remodeling or replacing doors, knowing the right bathroom door measurements is essential. The wrong size can cause clearance issues, poor fit, or even make your bathroom non-compliant with building codes.

Standard bathroom doors are usually 24 to 32 inches wide and 80 inches tall, though sizes vary depending on layout and accessibility needs.

In this guide, we’ll cover standard bathroom door measurements, tips for accurate measuring, and related topics like curtain measurements for sliding glass door and how to measure for a bifold door.

Standard Bathroom Door Measurements

Most interior doors, including bathroom doors, follow these common standards:

• Height: 80 inches (6 feet 8 inches)

• Width: 24, 28, 30, or 32 inches (depending on bathroom size)

• Thickness: 1 ⅜ inches

Accessibility Requirements

For ADA-compliant bathrooms, the minimum clear opening is 32 inches wide when the door is open 90 degrees.

Pro Tip: Always measure the rough opening (stud-to-stud) before ordering a new door to ensure proper fit.

How to Measure Bathroom Doors Correctly

1. Width – Measure across the door slab, not including the frame.

2. Height – Measure from top to bottom of the door slab.

3. Thickness – Standard is 1 ⅜”, but double-check to match hinges and hardware.

4. Frame/Rough Opening – Measure stud-to-stud for replacement projects.

Incorrect measurements are one of the most common mistakes homeowners make when replacing bathroom doors.

Curtain Measurements for Sliding Glass Door

While focused on bathrooms, many homeowners also ask about curtain measurements for sliding glass door in other rooms.

• Measure the width of the door, then multiply by 1.5–3 for curtain fullness.

• Standard sliding glass doors are 72 to 96 inches wide.

• Curtain length should be from rod to floor for a polished look.

Example: A 72-inch-wide sliding door usually needs curtain panels totaling 108–216 inches in width.

How to Measure for a Bifold Door

If you’re replacing a closet or laundry door, you may also need to know how to measure for a bifold door.

1. Measure the opening width from side to side at top, middle, and bottom.

2. Measure the opening height on both sides.

3. Subtract ½ inch from both measurements to ensure clearance.

Bifold doors are usually sold in 24, 30, 32, or 36-inch widths and 80 inches in height, just like bathroom doors.

FAQ: Door and Curtain Measurements

What are standard bathroom door measurements?

24–32 inches wide, 80 inches tall, and 1 ⅜ inches thick.

How do I measure a bathroom door for replacement?

Measure width, height, and thickness of the slab, plus the rough opening.

What are curtain measurements for sliding glass door?

Width × 1.5–3 for fullness, with lengths from rod to floor.

How to measure for a bifold door?

Measure opening width and height, subtract ½ inch for clearance.

Do ADA bathrooms require wider doors?

Yes, a minimum of 32 inches clear width when open 90 degrees.

Conclusion

The right bathroom door measurements make all the difference in functionality and compliance. Standard doors are 80 inches tall and 24–32 inches wide, but accessibility and room layout may require adjustments. For other projects, like curtain measurements for sliding glass door or learning how to measure for a bifold door, accuracy is key to achieving a clean and professional result.

By measuring carefully and following these tips, you’ll avoid costly mistakes and get a perfect fit every time. ✅